If you are a tenant. I looking for a rental property. I would suggest you contact a Realtor. As a tenant you do not pay for the service of the Realtor. It is free. The lanlord will pay the Realtor. With the market the way it is you would be better off using a Realtor as he/she can check the status of the property and verify if the home is in foreclosure. Also a Realtor can place special clauses in the lease to proptect your interest as a tenant.
If you want to do it on your own then the websites I suggest earlier would be your best source.
Stay away for Craigs List as many are scams. Read my blog post below to see what I mean about rental scams.